Evidence map›Paper›PMID 33257875›Full record

ArticleNature neuroscience2021

Neuroblast senescence in the aged brain augments natural killer cell cytotoxicity leading to impaired neurogenesis and cognition.

Wei-Na Jin, Kaibin Shi, Wenyan He, Jun-Hong Sun, Luc Van Kaer, Fu-Dong Shi, Qiang Liu

Abstract read
PubMed Publisher
In one paragraph

Article in Nature neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed, 1 pooled it
8.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

112 citing papers in PubMed, 1 synthesis or guideline pooled it, 181 citations in OpenAlex.

  1. Pooled it
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  6. Article
  7. Aged circulating CD8Immunity · 2026
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  15. P-Hydroxybenzaldehyde fromPharmaceuticals (Basel, Switzerland) · 2026
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52 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Wei-Na JinChina National Clinical Research Center for Neurological Diseases, Jing-Jin Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Kaibin ShiDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.
Wenyan HeChina National Clinical Research Center for Neurological Diseases, Jing-Jin Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Jun-Hong SunSchool of Forensic Medicine, Shanxi Medical University, Jinzhong, China.
Luc Van KaerDepartment of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, USA.ORCID http://orcid.org/0000-0001-5275-2309
Fu-Dong ShiChina National Clinical Research Center for Neurological Diseases, Jing-Jin Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.ORCID http://orcid.org/0000-0002-9675-4637
Qiang LiuDepartment of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China. qliu@tmu.edu.cn.ORCID http://orcid.org/0000-0002-6621-0591
Tianjin Medical University General Hospital · CNCapital Medical University · CNShanxi Medical University · CNVanderbilt University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Normal aging is accompanied by escalating systemic inflammation. Yet the potential impact of immune homeostasis on neurogenesis and cognitive decline during brain aging have not been previously addressed. Here we report that natural killer (NK) cells of the innate immune system reside in the dentate gyrus neurogenic niche of aged brains in humans and mice. In situ expansion of these cells contributes to their abundance, which dramatically exceeds that of other immune subsets. Neuroblasts within the aged dentate gyrus display a senescence-associated secretory phenotype and reinforce NK cell activities and surveillance functions, which result in NK cell elimination of aged neuroblasts. Genetic or antibody-mediated depletion of NK cells leads to sustained improvements in neurogenesis and cognitive function during normal aging. These results demonstrate that NK cell accumulation in the aging brain impairs neurogenesis, which may serve as a therapeutic target to improve cognition in the aged population.

Indexed as

Cellular SenescenceKiller Cells, NaturalNeural Stem CellsNeurogenesisAdultAgedAgingAnimalsCognitive DysfunctionCytotoxicity, ImmunologicDentate GyrusFemaleHumansImmunity, InnateInterleukin-27MaleInterleukin-27

Identifiers

PMID33257875
OpenAlexW3107630607

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.